查询词典 speed test

An SLon pilot continuous centrifugal concentrator (SLon pilot centrifugal concentrator) was used to study the effects of drum rotation speed and reciprocating velocity of water sprays on the separation performance of the concentrator under the optimum conditions of feed volume flow rate (24.5±0.4) L/min, feed solids content 20% and impacting pressure of water sprays 0.45 MPa, with the high gradient magnetic separation concentrate assaying 52.42% Fe from fine hematite tailings as test material.

摘 要：采用SLon实验型连续式离心机(简称SLon实验型离心机)，以高梯度磁选细粒赤铁矿尾矿得到的磁性产物(52.42% Fe)为试样，在给料体积速率为(24.5±0.4) L/min、给料固体浓度为20%和水束流冲击压力为0.45 MPa的条件下，研究转鼓转速和水束流往复速度对连续离心分离指标的影响。

Sulfide layer was made on the surface of high speed steel (W6Mo5Cr4V2) by means of low temperature ion sulfurization. The tribological properties of the sulfide layer under dry sliding were investigated on an MM 200 friction and wear test rig. An atomic force microscope and a scanning electron microscope equipped with an energy dispersive spectrometer attachment were adopted to analyze the morphologies and compositions of the original and worn surfaces of the sulfide layer. The phase structure of the sulfide layer was determined by X ray diffraction.

采用低温离子渗硫工艺在 W6 Mo5 Cr4 V2高速钢表面制备了硫化物固体润滑层，在 MM- 2 0 0型摩擦磨损试验机上对渗硫层的摩擦学性能进行了干摩擦试验研究，用原子力显微镜及扫描电子显微镜和 X射线光电子能谱分析渗层表面、截面、磨面的形貌及成分，用 X射线衍射仪分析了渗硫层相结构。

At first,the prin ciple of BLDCM is analyzed and the model is built;then a test is performed on a tining system of close loops of speed and current;torque ripple components are r educed by controlling switching andles of the PWM.

文中首先建立永磁无刷直流电机的数学模型，以此进行转速和电流双闭环调速系统控制；并通过调节 PWM发生器的开关频率来减少转矩脉动。

On the basis of the summarization of MCM-Cs main features and its assembly and packaging technologies, the paper puts stress on relatively deepgoing studies in practically advanced MCM-C assembly process technologies as gold ball wire bonding, IC chip gold ball stud bump making, IC flip chip bonding and underfilling, in high reliability MCM-C packaging process technologies as integral LTCC substrate packaging, hermetically metal sealing, and also in the basic technological process of MCM-C assembly and packaging. Later on, it presents the effectively engineering development of two high level actual module products--a high-density monolithic processor system MCM-C , a high-speed data collecting and processing system MCM-C. Lastly, it briefly introduces various common methods of quality inspection and reliability test of MCM-C assembly and packaging in engineering practice.

论文在综述MCM-C的主要特点及其组装封装技术的基础上，重点对金丝球引线键合、IC芯片金球凸点制作、IC芯片倒装焊与下填充等实用先进MCM-C组装工艺技术和LTCC基板与外壳及PGA引线的一体化封装、气密性金属封装等高可靠MCM-C封装工艺技术以及MCM-C组装封装基本工艺流程展开了较深入的研究，有效完成了高密度单片机系统MCM-C和高速数据采集控制系统MCM-C等两种高水平实际产品的工程化研制工作，扼要介绍了工程实践中MCM-C组装封装工艺常用的质量检验方法和可靠性试验方法。

However there is no satisfactory method a vailable to test torque speed curve of large power permanent magnetic motor.

电机的多项重要指标是否达到设计要求需要通过测试电机的转矩-转速曲线的结果来验证。

Based on advanced Volar Stress Distribution Test system, the pressure comfortability during middle-speed walking of 6 military shoes were analyzed.

基于先进的足底压力分布测试系统，本文分析了6种军用鞋靴样品在穿着中速行走时的受力舒适性。

The wrappage in a certain way is placed on a conveyance that loading, transportation routes, speed, transport distance and weather conditions, the evaluation of the wrappage to work under pressure, shock, vibration, friction, temperature and humidity and packaging ccultured mounted object protective ability test.

将包装件以一定方式置于运输工具上，在规定的装载量、运输路线、行驶速度、运输距离与外界气候等条件下，评定包装件承受动压力、冲击、振动、磨擦、温度和湿度变化的能力以及包装对内装物保护能力的综合试验。

According to data analysis of scene compactor test,the high speed hydraulic compactor can effectively reinforce the soil backfilled the bridge platform,which can reduce the settlement and the bridge platform jump after opening to traffic.

同时通过现场夯击试验点的数据分析来看，通过高速液压机的夯实加强作用，桥台的回填土压实效果有明显改善，可以有力地避免通过车后桥头跳车现象的发生。

According to data analysis of scene compactor test,the high speed hydraulic compactor can effectively reinforce the soil backfilled the bridge platform ,which can reduce the settlement and the bridge platform jump after opening to traffic.

高速液压夯实机对于解决高速公路桥台、桥涵侧回填土的质量不高的问题具有非常灵活的适用性和有效性。

This is the ultimate test of the game, police will embark on a lawsuit at very high speed trying to stop the barrages with (the harrows seem to have disappeared) or by blocking several cars.

这是最终考验的游戏，警察将开始在诉讼极高的速度试图阻止该弹的（在harrows似乎已消失）或通过阻断几辆汽车。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。